Michael griffin



(No Model.)

M. GRIFFIN.

1 Sole Channeling Machine.

No. 234,272. Patented Nov. 9, I880.

I f I j UNITED STATES PATENT OFFICE.

MICHAEL GRIFFIN, OF WEYMOUTH, MASSACHUSETTS, ASSIGNOR TO JOHN W. HART, OF SAME PLACE.

SOLE-CHANNELING MACHINE.

SPECIFICATION forming part of Letters Patent No. 234,272, dated November 9, 1880.

' Application filed July 26, 1880. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL GRIFFIN, of Weymouth, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Machines for Channeling Inner Soles for Sewed Shoes, of which the following is a full, clear, concise, and exact description, reference being bad to the accompanying drawings, in which- Figure l is an elevation, and Fig. 2 a bottom plan, of such parts of a channeling-machine as-are necessary to illustrate my.invention. Figs. 3 and 4 are perspective views of one set of knives. Figs. 5 and 6 show two I 5 forms of knives for giving the vertical cut necessary to completely sever the strips partially out from the sole by the knives shown in Figs.

3 and 4. Fig. 7 is a partial cross-section, en-

larged, of an inner sole channeled in my umchine.

In the drawings, A represents the head of the machine, andB the feedroll, these parts being as usual in these machines.

The knives are marked a a and b b and the pressers d d. It will be understood by all skilled in the art that the sole is fed forward by the rotation of roll B, in connection with a second roll or other support. (Not shown in the drawings.)

Two strips, f, are cutout from the inner sole, leaving a ridge, 9, near and nearly parallel with the edge, as shown in Fig. 7, to prepare it for use in sewed boots and shoes; and the object of my invention is to do this more rap- 3 5' idly and with less expense than heretofore,

more resembling hand-work.

In my machine the knives or a cut vertically into the sole to the proper depth, these two outs being parallel and forming the sides of ridge g. The other two knives, b b, are set so that they complete the cutting out 0f the strips f, and it is this arrangement of the roughened feed wheel or roll B of a channeling-machine between the vertical knives a a and the inclined knives b I), set to cut out the two strips 5 ffrom the surface of the sole and to leave the ridge g nearly parallel with the sole-edge, that constitutes my invention.

The vertical knife may be formed in one piece with its stock, as in Fig. 6, or may be a blade held in a divided stock, as in Fig. 5.

Heretofore in all machines known to me for doing this work a knife with an angular cutting-edge was used. This knife was diflicult to keep sharpened properly, and unless in per- 5 feet order was apt to tear the inner sole. In my machine each knife cuts easilyand is readily sharpened, as it is a simple blade mounted upon a suitable stock to enable it to be held firmly in the machine.

I am aware that it is not broadly new to employ two separate cutting-blades.

What I claim as my invention is In a channeling machine, the roughened feed-roll B, arranged between the two pairs of 6 knives to b and a, b, each pair arranged to cut out a strip, f, from the surface of the sole, and the whole operating to form the ridge 9 by four distinct cuts, as described.

MICHAEL GRIFFIN. 

